
Download WP Rocket – Best WordPress caching plugin
Open the file /wp-rocket/inc/functions/options.php in code editor and go to line 504, replace the block starting with “function rocket_valid_key()” with “return true” exactly in the same way as below:
",="" courier,="" monospace;="" font-size:="" 16px;="" font-style:="" normal;="" font-variant-ligatures:="" font-variant-caps:="" font-weight:="" box-sizing:="" inherit;="" border:="" 0px;="" margin-top:="" margin-bottom:="" outline:="" padding:="" 1.6em;="" vertical-align:="" baseline;="" overflow:="" auto;="" background:="" rgb(238,="" 238,="" 238);="" max-width:="" 100%;="" color:="" rgb(51,="" 51,="" 51);"="">function rocket_valid_key() { $rocket_secret_key = get_rocket_option( 'secret_key' ); if ( ! $rocket_secret_key ) { return true; }